Tempe Mayor Hugh Hallman coasted to a second term Tuesday, as did Mark Mitchell for a third term on the City Council.
But none of the other six council candidates secured enough support to win outright. That will trigger a four-way May 20 runoff for the remaining two seats.
Corey Woods scored the second-highest tally - two years after getting the fewest votes in a failed bid for the council.
He was followed by Joel Navarro, Vice Mayor Hut Hutson and Julie Jakubek. All four will advance to the runoff.
The other candidates, Darryl Jacobson-Barnes and Rhett Wilson, were eliminated Tuesday.
Woods said his stronger performance was the result of him getting more involved in community organizations, which made him more recognizable.
"I think people really got to know me over the last couple of years," Woods said.
Hutson raised the most campaign funds in his bid for a second term, but got the fourth-highest number of votes.
"I thought I had run a better campaign than that," Hutson said. "We'll just have to try to work harder."
Navarro said he was pleased to have enough votes to move on to the runoff.
"For a first time, I'm very pleased," Navarro said.
Mitchell was the only candidate to get more than 50 percent of the vote, which is required to win outright. Unofficial results show he got about 55 percent.
Hallman's only opponent was write-in candidate Derek Lull, an 18-year-old senior at Corona del Sol High School. Lull jumped into the race after the deadline to run for mayor passed in December without anybody challenging Hallman's bid for a second term.
On Tuesday, the high school senior's friends and family packed a local Fazoli's to support his bid for mayor.
Lull worked at the restaurant for three years before taking a leave of absence to run his political campaign.
The restaurant was decked out in "Derek Lull for Mayor" signs and red, white and blue streamers, and Lull supporters were treated to free samples and breadsticks.
A table near the cash registers displayed Lull's positions on various issues, along with newspaper clippings of his campaign coverage and his Corona del Sol High School varsity letter for cross-country.
When the votes came in later, however, Lull found out he would not become Tempe's next mayor.
"I'm glad I got as many votes as I did. That's good news," Lull said as he drove home. "I knew going into it that it would be a long shot, but maybe if I try again in the future, I might be able to win."
Hallman received about 81 percent of the vote, according to preliminary results.
He thanked supporters during a party in his north Tempe home Tuesday night, touting his efforts to make the city more financially, culturally and environmentally sustainable.
Supporter Darlene Justus praised Hallman for bringing economic growth while working on neighborhoods and historic preservation.
"He's energized this city," Justus said. "He's made us proud to live in Tempe."
Justus worked on this and previous Hallman campaigns and has known him since he was a child. She was also a friend of Evelyn Hallman, the mayor's late mother and a fellow neighborhood activist.
Hallman's lack of opposition came despite a fierce two-way campaign four years ago that was one of the most bitter in recent Tempe history. Hallman defeated longtime councilman Dennis Cahill despite concerns that Hallman was too much of a maverick.
Hallman raised more than $80,000 for this campaign, according to the most recent finance reports from late January. He said he raised money through much of last year because he expected a challenger, but none emerged by the mid-December deadline.
Reporter Andrea Natekar contributed to this story.